Combination window latch



Aug. 4, 1931.

Filed Jan. 8. 1930 2 Sheets-Sheet l H. L. ROBY Aug. 4, 1931.

COMBINATION WINDOW LATCH Filed Jan. 8, 1930 2 Sheets-Sheet 2 (D I as Patented Aug. 4, 1931 UNITED STATES PATENT OFFICE HARRY L. ROBY, OF CINCINNATI, OHIO, ASSIGNOR OF ONEHALF TO THE HIGHLAND BODY MANUFACTURING COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO COMBINATION WINDOW LATCH Application filed January 8, 1930. Serial No. 419,338.

This invention relates to a combination window latch and check device whereby windows may be securely latched inclosed position, or checked against movement at a position intermediate the open and closed posi- An. object of. the invention is to provide adevice of the above type which may not be manipulated from outside of the window by means of wires or other implements.

Another object of the invention is to provide a device of the above type which may readily be moved to an inoperative position by a person having access thereto, in the 16 event that it is desired to move the windows to full open positions.

Another object isto construct the device so that the latch or keeper thereof is resiliently held in the operative of latched position, to preclude inadvertent displacement thereof. t

Another object is to provide a device for the purposes stated, which is simple and inexpensive of -manufacture.

These and other objects are attained by the means described herein and disclosed in the accompanying drawings, in which;

Fig; 1 is an elevational view of a pair of relatively movable windows showing the device of: the invention in position thereon.

Fig. 2 is a cross-sectional view on line 22 of Fig. 1, showing the device of invention in position for latching the windows in closed position.

Fig, ,3 is a view similar to Fig. 2, but showing the device of invention in the inoperative position, which permits of free and unrestricted relative movement of'the windows;

Fig. 4 is a cross-sectional view on line 4:-& of Fig. 1.

Fig. 5 is an enlarged crossrsectional view on line 5-5 of 4.

The device of the present invention com prises a stationary leaf 7, a safety leaf 8 and a fly leaf 9, all hingedly mounted upon a common hinge pin 10 and movable relatively to one another. The stationary leaf is screwed or otherwise securely fastened, upon the inner face 11 of the sash 12 forming part of the Q upper-window, (Fig. 5). To the upper surface of the cross rail 13 of the lowermost window 14, is secured an abutment plate 15 upon which is rotatably mounted a keeper or latch member 16 which is movable in a horizontal plane. The keeper is adapted to hold the fly leaf 9 in the operative position shown in Figs. 1 and 2, in which position the fly leaf abuts the upper face of plate 15, thereby precluding upward movement of the lower window and downward movement of the upper window. Upon moving the keeper to the inoperative position shown in Fig. 3, the fly leaf 9 and also the safety leaf 8' may be moved about hinge pin 10 to the inoperative positions shown in Fig. 3, whereupon the windows may freely be moved relatively to one another. )Vhen it is desired to limit relative movement of the windows, the safety leaf is disposed in the position shown in Figs. 1 and 2, and the fly leaf is disposed in the position indicatedbydotted lines 17 of Fig. 2. The extendingheador safety lug 18 on safety leaf 8, thereby is disposed in the path of movement of abutment plate 15 for limiting upward movement of lower window 14, (Fig. 1), or downward movement of upper window 12. The extent to which the windows may be moved relatively, when the safety leaf is in the operative position, (Figs. 1 and 2), is determined by the distance between the head 18 and the abutment surface 19 of plate 15. It will be readily apparent that by limiting said distance sufficiently, persons may be precluded from entering a house by way of the partially open window. This is the purpose of the safety leaf.

In Fig. 5 is disclosed the manner in which the members 7, 8 and 9 are hinged upon the pin 10. It is to be noted that the cylindrical hinge members 20, of safety leaf 8, are provided with abutment surfaces 21 which are adapted to abut a cooperative abutment por tion 22 of leaf 9 when the leaves are disposed substantially at right angles to one another. These abutments provide a stop means whereby the member 9'cannot be moved to a position wherein it flatly abuts member 8, and that an attempt to so move member 9 would result in flexing thereof. Slight flexing of the member 9 by keeper 16, (Fig. 2), serves are to preclude free rotatory movement of the keeper when in engagement with the member 9, thereby precluding inadvertent or accidental moving of the keeper from the operative rail 13 of lower Window 14, preferably by means of the screws and 26, screw 26 serving also as a pivotal mounting for the keeper 16. The usual window frame is conventionally illustrated ,in the drawings, wherein 27 represents the guide strips, and 28 the upright jamb members. The screws for securing the stationary leaf 7 to the upper window sash, are indicated by29. 7

It should be noted that the hinge members 20 and 30 of the leaves Sand 7, respectively, are reduced in length along that portion of the hinge pin that supports the fly leaf hinge members 31. A greater member of hinge co1 1- nections are thereby provided in the region of the fly leaf mounting means. This arrangement affords a substantial mounting for the fly lea-f.

It should be apparent from the disclosure 2 in Fig. 2, that'an implement inserted in the space between the window sashes, from the outside of the window, could not be used to unlatch thewindows, and that the safety leaf could not, under any circumstances, be ma nipulated for the reason that it is disposed between the sashes when in the operative positionlV hat is claimed is:

1. Ina device of the class described the combination of a stationary leaf for attachment to one of a pair of relatively movable members, an abutment means on the other member, a safety leaf hinged relative to the I stationary leaf, a stop lug on the safety leaf for abutting thesaid abutment means for limiting movement of the relatively movable members, a flyleaf hinged relative to the stationary leafand movable into and out of engagement with the abutment means, a stop means for yieldingly limiting movement of the fly leaf in one direction of movement, and a movable keeper having a flat portion for abutting the fly leaf and holding the fly leaf against the force of the yielding stop means.

"2. In a device of the class described the I combination of a stationary leaf for attachment to one of a pair of relatively movable members, an abutment means on the other member, a fly leaf hinged relative to the stationary leaf and movable into and out of engagement with the abutment means, a stop means for limiting movement of the fly leaf in one direction of movement, and a keeper co-operating with the fly leaf for precluding movement thereof in the opposite direction of movement.

3. In a device of the class'de'scribed the combination of a stationary leaf for attachment to one of a pair of relatively movable members, an abutment means on the other member, a fly leaf hinged relative to the stationary leaf and movable into and'out of engagement with the abutment means, a stop means for limiting movement of the fly leaf in one direction of movement, and a keeper co-operating with the fly leaf for precluding movement thereof in the opposite direction of movement, said keeper serving to retain the fly leaf against the stop means.

4. In a device of the class described the combination of a stationary leaf for attachment to one of a pair of relatively movable members, an abutment means on the other member, a safety leaf hinged relative to the stationary leaf, a stop lug on the safety leaf for abutting the said abutment means for limiting movement of the relatively movable members, a fly leaf hinged relative to the stationary leaf and movable into and out of engagement with the abutment means, a stop means for limiting movement of the fly leaf in one direction of movement, and a keeper co-operating with the fly leaf for precluding movement thereof in the opposite direction of movement.

5.-In a device of the class described the combination of a stationary leaf for attachment to one of a pair of relatively movable members, an abutment means on the other member, a safety leaf hingedly mounted upon the stationary leaf, a stop lug on the safety leaf for abutting the said abutment means for limiting movement of the relatively movable members, a fly leaf hinged relative to the stationary leaf and the safety leaf and movable into and out of engagement with the abutment means, and a keeper for precluding displacement of the fly leaf.

6. In a device of the class described the combination of a stationary leaf for attach ment to one of a pair of relatively movable members, an abutment means on the other member,'a' safety leaf having a stop lug for abutting the said abutment means for limiting movement of the relatively movable members, and a fly leaf movable into and out of engagement with the abutment means, said fly leaf, safety leaf and stationary leaf having a common hinge mounting.

7. In a device of the class'described the combination of a stationary leaf for attachment to one of a pair of relatively movable members, an abutment means on the other member, a safety leaf and a fly leaf having a common hinge connection with the stationary leaf, a stop lugon the safety leaf for abutits HARRY L. ROBY. 

